Improvement in feed-water heatees for boilers



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HORATI'O O. PERRY, 0F BUFF.AL,NEW YORK.

Letters.Patent No. 79,385, dated June `30, 1868; anteated Jun-e 16,1868.

IMPROVEMENI' IN FEEDi- WATER HBATBRS FOB. BOILERS.

TO ALL WHOM IT MAY CONCERN: A Be it known that I, HORATI O. PERRY, cfthe city of Bulfalo, in` til county of Erie, and State of New York, haveinvented certain new and useful Improvements in Feed-*Water Reaters forSteam-Boilers; and I do hereby declare that the following is a full andexact description thereof, rr .rence being had'tothc accompanyingdrawings, in whichl` I Figure 1 is a-side view of a portion of a boilerpartially in section,showing the arrangement of my improved heater. l

Figure 2 is a vertical section ofthe heater detached.

Like letters of reference designate corresponding parts in beth igure.

The invention'consists in the construction and `arrangement ot' yafeed-water heater within the smoke-box or chimney of a steam-boiler,substantiallyA as hereafter described. l

I In the drawings, A represents the smokefbox,]3 the chimney orsmoke-stack extending therefrom; C is the heater, arranged abovcthe uesin the smoke-box and chimney.

The heater consists of a cylindrical or slightly-conical vessel placedupright, with avertical ilue or opening, D, passing through its centre.The shell or outer caser-e is made with its sides outwardly diver-gingtowards the top, whilethe inner case or flue-is 'made to converge, asshown in liig. 2, leaving between the two an annular Water-space, F.Cold water is introduced into this space near the bottom, through asuitable pipe, g, which enters from the outside.

II is the feed-pipe near the top, through which the water, after it hasbecome heated, is forced by the feedpump into the boiler. I is asteam-pipe, which conveys the steam generated in the heater to thesteam-dome. The inclined or diverging and converging sides respectivelyof the'case and due of the heater cause more of the heated products ofcombustion to come in contact therewith, than wouldif they werevertical, with 'the draught ascendingparallel along its sides. They alsoserveI to slightly retard the passage of the heated products, whichenables more ofthe heat'to be absorbed.

The great advantages of myimproved arrangement are obvious.

` .It utilizes the products of combustion'aftersthey have performedtheir ofiice of generating steam in thc I boiler, and which wouldotherwise escape and be wasted. v

In many arrangements the heater abstracts heat that would otherwise beemployed in generating steam, by which there'is lost in one directionwhat is gained in the other, whereas by my improved arrangement I amenabled to--attain all the beneficial results of a heater, without anyofthe prejudicial consequences that usually attend its use.

The heater is also simple in its construction, and of a nature bestcalculated to accomplish the desired' purpose. It can be easily appliedto any ordinary boiler, and at-but a trifling expense.-

What IY claim as my invention, is- The heater C, constructed andarranged within the smoke-box and chimney, substantially as shown anddescribed. y

In witness whereof, I have'hereunto signed my name in the presence oftwo subscribing witnesses.

IIORATIO O. PERRY.

Witnesses: l

JAY HYATT, JOHN L. LAY.

